427 plants indexed. Showing 256 matching current filters.
SALEM STP serves approximately 7,863 residents in Salem, Illinois. The plant is located inland and discharges treated wastewater into local waterways, contributing to the Kaskaskia River basin.
Central City STP serves Centralia, Illinois, treating wastewater for approximately 2,529 residents. The plant operates under US EPA and Illinois EPA regulations for municipal wastewater treatment.
PRINCETON STP serves approximately 7,555 residents in Princeton, Illinois. The facility discharges treated wastewater into the local watershed, supporting the Illinois River basin.
Spring Valley STP serves approximately 5,500 residents in Spring Valley, Illinois. The plant operates under US EPA NPDES regulations for municipal wastewater treatment.
Ladd Sewage Treatment Plant serves the village of Ladd, Illinois, treating wastewater from approximately 1,988 residents. The plant discharges into local waterways within the Illinois River basin.
LaSalle East Side WWTP New Plant serves approximately 4,800 residents in LaSalle, Illinois. The facility discharges treated wastewater into the Illinois River watershed, ultimately draining to the Mississippi River.
LaSalle WWTP in Marseilles, Illinois serves approximately 12,000 people. The plant operates under the US Clean Water Act, discharging treated wastewater into the Illinois River watershed.
Lawrenceville STP serves 5,700 residents in Lawrenceville, Illinois. The plant operates under the US Clean Water Act, discharging treated wastewater into the Wabash River watershed.
The Romeoville WWTP and Collection System serves approximately 39,600 residents in Romeoville, Illinois. It operates under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater.
LEMONT WRP is a municipal wastewater treatment plant serving Lemont, Illinois, USA. It treats wastewater for approximately 16,000 residents and discharges into the local watershed within the Mississippi River basin.
John E Egan WRP serves approximately 285,000 people in Cook County, Illinois. The plant is part of the region's wastewater infrastructure, discharging treated water into local waterways.
Hanover Park WRP serves 95,424 people in Hanover Park, Illinois. The plant operates under the US Clean Water Act with a designed capacity of 1.00 million gallons per day.
Downers Grove SD and COLL SYST serves 60,000 people in Downers Grove, Illinois. The plant operates under the US Clean Water Act's NPDES permit program for municipal wastewater treatment.
GLENBARD WASTEWATER AUTHORITY serves Glen Ellyn, Illinois, treating wastewater for approximately 68,888 people. The plant operates under the US Clean Water Act via NPDES permits.
Flagg Creek Water Reclamation District serves Burr Ridge, Illinois, treating wastewater for approximately 34,692 people. The plant operates under U.S. EPA and Illinois EPA regulations, discharging treated effluent to local waterways.
Roselle JL Devlin WWTP serves approximately 12,750 people in Roselle, Illinois. The plant operates under the US Clean Water Act framework, discharging treated wastewater to local waterways in the DuPage County area.
ROSELLE BOTTERMAN STP serves 8,100 people in Roselle, Illinois. The plant operates under the US Clean Water Act, with a designed capacity of 1.00 million gallons per day.
Hanover Park WWTP No1 serves approximately 5,542 residents in Hanover Park, Illinois. The plant is part of the region's wastewater infrastructure, discharging treated effluent into local waterways.
Lake County DPW New Century Town serves 12,800 people in Vernon Hills, Illinois. The plant operates under US EPA NPDES permits and discharges treated wastewater into the local watershed.
Lake County DPW Mill Creek WWTP serves Old Mill Creek, Illinois, with a designed capacity of 1.00 million gallons per day. The plant treats wastewater for approximately 6,719 residents in Lake County.
UtilityRadar indexes 427 wastewater treatment plants in Illinois, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, LEMONT WRP has the highest designed capacity at 1 m3/day.